Abstract: As industrial control systems (ICSs) have become increasingly connected and use more off-the-shelfcomponents, new vulnerabilities to cyber attacks have emerged. This tutorial looks at three types of ICSs:programmable logic CONTROLLERs (PLCs), supervisory control and data acquisition (SCADA) systems, anddistributed control systems (DCSs), and then discusses security issues and remedies. This document alsoexplains the benefits and limitations of two cryptographic solutions (digital signatures and encryption) andelaborates on the reasons for using security ICs in an ICS to support cryptography.
上传时间： 2013-10-09
上传用户：woshinimiaoye
There are many manufacturers of dot matrix LCD modules. However, most of these displaysare similar. They all have on-board CONTROLLERs and drivers capable of displaying alpha numericsand a wide variety of other symbols (including Japanese "Katakana" characters). The internaloperation of LCD controller devices is determined by signals sent from a central processing unit(in this case, a CoolRunner-II CPLD).
标签： CoolRunner-II XAPP 904 LCD
上传时间： 2013-12-17
上传用户：haiya2000
A collection of interface applications between various microprocessors/ CONTROLLERs and the LTC1090 family of data acquisition systems. The note is divided into sections specific to each interface.
上传时间： 2013-11-08
上传用户：sssnaxie
人工智能中模糊逻辑算法 FuzzyLib 2.0 is a comprehensive C++ Fuzzy Logic library for constructing fuzzy logic systems with multi-controller support. It supports all commonly used shape functions and hedges, with full support for the various types of Aggregation, Correlation, Alphacut, Composition, Defuzzification methods. The latest version of the C++ Fuzzy Logic Class Library contains all the C++ source code and comes complete with a usage example for building a multi-CONTROLLERs fuzzy logic model.
标签： comprehensive constructing FuzzyLib library
上传时间： 2013-12-17
上传用户：dbs012280
This paper addresses the issues relating to the enforcement of robust stability when implementing the Adaptive Inverse Control (AIC) scheme. In this scheme, an adaptive FIR filter is added to a closed-loop system in order to reduce the output error caused by external disturbances, enhancing the performance achieved by linear time-invariant CONTROLLERs alone.
标签： implementing enforcement addresses the
上传时间： 2013-12-23
上传用户：佳期如梦
LinCAN is a Linux kernel module that implements a CAN driver capable of working with multiple cards, even with different chips and IO methods. Each communication object can be accessed from multiple applications concurrently. It supports RT-Linux, 2.2, 2.4, and 2.6 with fully implemented select, poll, fasync, O_NONBLOCK, and O_SYNC semantics and multithreaded read/write capabilities. It works with the common Intel i82527, Philips 82c200, and Philips SJA1000 (in standard and PeliCAN mode) CAN CONTROLLERs. LinCAN project is part of a set of CAN/CANopen related components developed as part of OCERA framework.
标签： implements multiple capable working
上传时间： 2015-10-14
上传用户：磊子226
The ability to write efficient, high-speed arithmetic routines ultimately depends upon your knowledge of the elements of arithmetic as they exist on a computer. That conclusion and this book are the result of a long and frustrating search for information on writing arithmetic routines for real-time embedded systems. With instruction cycle times coming down and clock rates going up, it would seem that speed is not a problem in writing fast routines. In addition, math coprocessors are becoming more popular and less expensive than ever before and are readily available. These factors make arithmetic easier and faster to use and implement. However, for many of you the systems that you are working on do not include the latest chips or the faster processors. Some of the most widely used microCONTROLLERs used today are not Digital Signal Processors (DSP), but simple eight-bit CONTROLLERs such as the Intel 8051 or 8048 microprocessors.
标签： arithmetic high-speed ultimately efficient
上传时间： 2014-11-30
上传用户：lizhen9880
2007年最新的多种路径规划算法的仿真软件包。At the later releases more world models and sample planners will be distributed, for now only a few world models and CONTROLLERs are uploaded within this package. Press Start to start the simulation. Enjoy :) A better tutorial will be prepared soon about using the simulator and adding new algorithms etc.
标签： distribut releases planners models
上传时间： 2015-11-22
上传用户：wanghui2438
This example project shows how to use the IAR Embedded Workbench for ARM to develop code for the IAR-STM32-SK evaluation board. It shows basic use of I/O, timer and the interrupt CONTROLLERs. Displays running lights on the board LED s.
标签： Workbench for the Embedded
上传时间： 2013-12-20
上传用户：Breathe0125
Der Aufbau eines kleinen Frequenzzä hers ist dank der heutigen Atmel AVR Controller oder aber auch der Mikrochip PIC Controller (um nur zwei zu nennen) relativ schnell und einfach aufzubauen. Dazu werden meist die internen Timer/Counter des CONTROLLERs benutzt. Der Counter wird durch das anliegende Signal am Takteingang hoch gezä hlt. Durch den Timer wird dann der Counter zu einen festgelegten Zeitpunkt stetig ausgelesen und zurückgesetzt. Nehmen wir mal an ein 20Hz TTL-Signal taktet den Counter so steht nun im Counterregister nach einer Sekunde der Wert 20. Dieser wird nur noch auf dem Display oder serielle Schnittstelle ausgegeben. Nach einer erfolgreichen Auktion bei einen einschlä gigen Internet Auktionshaus, erwarb ich einige 7Segment Anzeigen, hierfür musste ich mir etwas einfallen lassen. Heraus kam somit ein besagter kleiner preiswerter 50MHz Frequenzzä hler, den ich nicht vorenthalten will.
标签： Controller Frequenzz heutigen kleinen
上传时间： 2016-06-10
上传用户：1583060504
